Hydroseeding (or hydraulic mulch seeding, hydro-mulching, hydraseeding) is a planting process that uses a slurry of seed and mulch. It is often used as an erosion control technique on construction sites, as an alternative to the traditional process of broadcasting or sowing dry seed.
Hydroseeding is a combination of water, seed, fiber mulch, fertilizer, and tackifier (glue). The material is mixed in a tank to a heavy slurry consistency and then sprayed onto the ground, slope, or stockpile. Hydroseeding is great for those hard to reach areas, critical areas where hay will not work, and it's perfect for temporary stockpiles.